Reed-organ.



UNrI-iin STATES- -PATENT oFFICE.

WILLIAM r.. BULTMANN, or ELeIN, ILLINOIS. "1

'REED-onesti.

Specification of YLetters Patient.

Application led February 26, 1912. Serial No. 679,99?. i

v T 0 all whomz't may concern."4

or air pressure upon the sound producing.

elements. rilie especial object ofthe improvements embodied herein isto'produce a combinationv of feeder bellows, `reservoir and auxiliary communicating air chamber whereby the continued loperation of the bellows will' not strain the' fabric of the reservoir. v

A lfurther object is to provide ,a construction which willavoid the spasmodic hissing incidentl to the' use of ordinary relief valves on reservoirs,l where the 'feeder bellows are continuously operated. l

A further object is to provide a .construc-` tionwhereby the supply of air will be uniforml -maintained in the reservoir. -notwitliL standing the continued action of the motor vor other means u-s'ed 4 feeder bellows.

Inv the .accompanying drawing which forms-a part of this application, I have shown a preferred adapt-ation of my inven-- tion in the' following' views Figure -1 1s a view in elevation of a pair of Afeeder bellows, means -forv operating same, and a,` reservoinwith auxiliary air a.

chamber, all constructed and arranged according to my invention; Fig. 2 is a vertical section' on line 2-2`of- Fig. 1.

Referring to thedetails of theidrawing,- l3v represents a fragment ofthe portion of the wind-'chest of any reed organ, in which there is an opening 3a communicatingwith an auxiliary air reservoir or lconduit 4, which is interposed between the main reservoir 6 and the feeder bellowsn9. This auxiliary reservoir takes the place ofthe board which is ordinarily placed between the main y reservoir 6 and `the feeder bellows," and car ries the valves controlling the openings tween said members. The auxiliary reservoir 1s rectangular. in form, and is provided with an extensiont, in the upper wall 'of which is an`o}'ening 4b, and,is d ivided into. two chambers I y a verticalpar't1tion4. Be# tween the partition 4 adtlejendwall 45,

of openingsft", and another series of exit Patented Feb'. 18, 1913.r

i the lower wall -of th'ecliamber has as'eries` openings 4f Iare `in its upper. wall,besides^ controlled by the common orm of strapg valve 5 which isf placed oni the'in'ners'ideofthe upper Wall of the auxiliary reservoir" chambeigas clearly shown'in Fig.' 2. v

' 6 represents the main reservoir, which is of the common bellows-ty e, andis normally maintained 'in 'ex ande relationibyxthe sprii.1g.7. The exlble Jside walls 6, are col` laps1ble in the usualmanner, and. in the lower wall' of the reservoiris al series of openingsv 6". which .communicate and regis! ter with theropeningsfi"l in the upper wall of the auxiliary reservoir; -At .one corner of the reservoir Gis. a horizontally extending arm 8. -Tlie feederbellows 9 are of the usual form, with flexible. or collapsible walls 9, and providedy inthe outer rigid walls with openings, 9b' coveredl and controlled by :strap valves 1 1, and in 'the inner 'wall with a series o f'o'pening's 9? which communicate and registerl withl the openings `4e inthe lower wallofthe. auxiliaryV reservoir.

rIihe bellows-9 areexp'anded by the usual.

springs 10. Secured to the outer` .si.de o f thetop wall of the v*auxiliary reservoir by a sorew12, isa Hap valve made 'upofa rigid back pie-ce leehaving a1eaher-facipgjstrip 13, and having an"v arm 12"- extending at an angle from thefback piece'. lTheto j of the outer end ofthe arm-.12b is equippe with'a piece Vof soft leathers-12d. 'I helea'ther facing strip 13 forms'azhinge forthis valve,Y and pro]ecting upwardly attliev freeI end 'of the latter, 'are 'pins 12d, .between which rests the L'free end of a 'flat spring 14, whichi-s secured `at 14, and has its extremity' resting upon l the upper side of thevalve plate 1223.

" 1 5 represents `a double-arm"crank-shaft journaled in standard 1-6, and having con-r nected with its cranks, pit-men 17 the'other ends fof whichare hingedly connected at 18 tothe 'outer .walls/of the bellows 9. Near one end of the shaft 15 isa grooved p ulley 1 9 which maybe' driven; by .any Suitablemotor, driving means not'being shown as theyform-no part of this .invent-ion."

The end -12cof the larm-'12b is arranged .in the path of the arilfas thejlatt'er de- .'.Sfends b; so -that/tile depressionof the'upper Wall of thefreservoir 6,"pressing downv'vardlyi on the .arm/12b, Willemse the free" end 'of the lever thevcollap'sing of 'the reservoir-6,

12 to be raised, andthus uncovervthe. openings 4f 'in the upper wall of the 'auxiliary reservoir 4, thus relieving the main reservoir As soon as the reservoir is expanded, the

20 f be necessary -to 'stop'.a motorfdriv'ing 'the pulley 19, whenv thereservoir l6 has been. collapsed through the' air exhausting action I .voir andv with tne wind-chest of the organ, and the .other communicating with the` )co1-4 ,gether' with the spring which j auxiliary chamber 4, andfhas one 'end .open.

tension ofthe spring 14'will closet-he valve 12 and restore the normal relation between. the feeder bellowsland the reservoir 6.

'In order to avoid any audible noise from l the vair .wishing under the valve .12a through the' openingsAf, I house the said' valve, to-l the 4 arm '12, in'` a vcylindrical mii-filer 20 secured to the upper side of the It will be seen fromthe construction and operation above described, that itfwill not of the feeder' bellows, as. the continued; action of said motor, .while it will operate said` bellows, will have nol appreciable effect on the reservoir 6 :as the air will be drawn di-v '.rectly from' te atmosphere throughthe muiiier and pass through the openings 4f.' It will alsovbe apparent that 'the presence of the auxiliary reservoir 4, with its constant volume of air, interposed between the feeder bellows and the reservoir 6, will prevent the 'l -spasmodic action ofthe valves and the reservoir, andhencethe noise occasioned by such .action'inthe constructionscommonv t'o' the' art, 4will be avoided..

\In aotualpractlce it has been found that l the reservoir will be collapSed .to .a predeterminedpoint'where the arm .8 will engage' whereupon the val-ve 12a the Cvalve arm 12b, connected'with said arm, will: 'be'opened sulfii' ciently to relieve the reservoir from .the 'QX- haustive actin of the feeder'bellows, and; said-valye will be normally maintained in i this relation,thus securing a well balancedfaction constantu-pon the reservoir, notwithstandingthe feeder `bellows will continue `theirpumpiug action.

14 and a portion of said valve when reached a predetermined degree of col- It will'. be understood that the partition 4, 'will cause the. air-to pass directly'from .the auxiliarychamber,.on-the right'of tsaid par' tition, as shown in the drawing, to the reservoir 6/ through the opening 4".

Having thus described my invention, what I claim'as new, is u l. In an organ7V including a wind-chest, the combination of an air reservoir, feeder bellows adapted to withdraw'the air from said reservoir, an auxiliary air chamber interposed between sad feeder bellows and reservoir, and communicating respectively therewith, and means whereby the auxiliary air chamber will be automatically relieved from the action of the feeder bellows, said yautomatic means operated by the reservoir.,

. 2. In an organ including a wind-chest, the combination of a collapsible air-reservoir,

from said reservoir, an Aauxiliary air chamber arranged ,between said feeder 'bellowsv land said collapsible air reservoir, said auxil-l iary' reservoir divided into vtwo non-com municating chambers one of said chambers communicating with the collapsible reserlapsible y reservoir and the feeder-beliows, said auxiliary 4reservoir chamber also communicating with the atmosphere, a valve vcon t r ollingV said -l'ast means of communication, and means.- for automatically opening the collapsible reservoir has lapsibility; l

. 3.' In a wind instrument vof the lclass de,.-

' scribed, a' wind-chest',- a collapsible 'reservoir communicating with the wind-chest, a

feeder bellows adapted to withdraw the air feeder-bellows adapted to operate upon. said I reservoir, a noncollapsible auxiliary' ber communicating with Isaid bellows and and means. oontrolling'said open ing and including saidauxiliary'y chamber lows 4upon the reservoir 'will be automatireservoir, and'havingan-pening tothe at .mosphere,

cally prevented through theop'erationf of the collapsible reservoir. i

In testimony whereof I alx my signature y in the presence of twol witnesses.

' l lWILLIAM F. BULTMANN' F. BENJAMIN,

A. MiLoRD.' 

